Blender only shows blank image when rendered
If you tap the right most button here:

you can check how the rendered image would look like.
There you can also see the black screen.
Then tap on the two button right to your cube001: (eye + camera)

Then add a sun : strength : 50
and you will get:


hint: without any light in the scene (whatever &quot;form&quot; of light) you won't see anything (which results in black screen)
instead of adding a sun you could also change the world shader to a background shader as @Gorgious said.